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Solid Phase Heat Capacity (Shomate Equation)

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. - 700.700. - 1042.1042. - 1100.1100. - 1809.298. - 1809.
A 18.42868-57767.65-325.8859-776.738723.97449
B 24.64301137919.728.92876919.40058.367750
C -8.913720-122773.20.000000-383.71840.000277
D 9.66470638682.420.00000057.08148-0.000086
E -0.0126433993.080411.9629242.1369-0.000005
F -6.57302224078.67745.8231697.62340.268027
G 42.51488-87364.01241.8766-558.367462.06336
H 0.0000000.0000000.0000000.0000007.788015
ReferenceChase, 1998Chase, 1998Chase, 1998Chase, 1998Chase, 1998
Comment «alpha»-«delta» phase; Data last reviewed in March, 1978 «alpha»-«delta» phase; Data last reviewed in March, 1978 «alpha»-«delta» phase; Data last reviewed in March, 1978 «alpha»-«delta» phase; Data last reviewed in March, 1978 «gamma» phase; Data last reviewed in March, 1978
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
298.25.0927.3127.32-0.00
300.25.1427.4827.320.05
400.27.4035.0228.342.67
500.29.6841.3830.325.53
600.32.0647.0032.648.61
700.34.6052.1335.0611.94
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
700.34.4852.7435.4712.08
800.37.8557.0137.9015.29
900.43.0061.9740.3019.50
1000.54.3566.6942.7024.00
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
1042.83.6868.9043.3826.60
1100.46.4072.4144.8230.34
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
1100.46.3972.0644.8129.97
1200.40.7775.8247.2534.29
1300.38.6878.9949.5738.25
1400.38.5081.8451.7742.09
1500.39.2684.5253.8745.98
1600.40.3787.0955.8649.96
1700.41.5289.5757.7754.05
1800.42.5791.9759.6158.26
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
298.26.4735.5335.55-0.00
300.26.4835.7135.550.05
400.27.3243.4436.592.74
500.28.1649.6338.605.51
600.29.0054.8440.898.37
700.29.8359.3743.2111.31
800.30.6763.4145.4914.34
900.31.5167.0747.6817.45
1000.32.3470.4349.7920.64
1100.33.1873.5551.8123.91
1200.34.0276.4853.7527.27
1300.34.8579.2355.6030.72
1400.35.6981.8557.3834.24
1500.36.5384.3459.1037.86
1600.37.3686.7260.7541.55
1700.38.2089.0162.3545.33
1800.39.0491.2263.8949.19

References

Go To: Top, Solid Phase Heat Capacity (Shomate Equation), Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]


Notes

Go To: Top, Solid Phase Heat Capacity (Shomate Equation), References